Mini Idle Vibration on Steering wheel when A/C is turned on

silvergem · 2023-03-14T15:14:25-0400

I've already cleaned the IAC Valve and throttle body + Idle relearn. Still same problems encounter

Based on Obd2 readings Idle was 682rpm, When A/C turned on it goes to 588rpm, then goes back to 657

The Engine and transmission support was already changed last Dec 2022

Flatsole · 2023-03-14T16:38:24-0400

Everything you typed sounds normal to me.

silvergem · 2023-03-14T16:48:40-0400

Flatsole said:
Everything you typed sounds normal to me.

So, the rpm does not change when the A/C is turned on?

Flatsole · 2023-03-14T16:54:32-0400

Usually it does. You typed that it does, and I said that sounded normal.

rhysoul · 2023-03-14T17:45:59-0400

It does a little but settles down. It’s not like an old carbureted engine.

silvergem · 2023-03-15T00:07:09-0400

rhysoul said:
It does a little but settles down. It’s not like an old carbureted engine.

so it will burst for 1 sec and will go back to previous rpm?

rhysoul · 2023-03-15T00:34:46-0400

silvergem said:
so it will burst for 1 sec and will go back to previous rpm?

Yeah, totally normal.

silvergem · 2023-03-15T00:53:36-0400

Seems my problem is unrelated to IAC

silvergem · 2023-03-16T18:26:27-0400

Flatsole said:
Usually it does. You typed that it does, and I said that sounded normal.

Ive updated my post with obd2 readings

rhysoul said:
Yeah, totally normal.

Ive updated my post with obd2 readings

Flatsole · 2023-03-16T18:43:01-0400

silvergem said:
Ive updated my post with obd2 readings

Ive updated my post with obd2 readings

The compressor clutch engaging puts a big load on the engine, especially at idle.

silvergem · 2023-03-16T20:06:19-0400

Flatsole said:
The compressor clutch engaging puts a big load on the engine, especially at idle.

Do i need to check this on mechanic? The rpm was short of 45rpm

Hammerhead · 2023-03-16T20:38:11-0400

silvergem said:
Do i need to check this on mechanic? The rpm was short of 45rpm

??

silvergem · 2023-03-16T20:47:50-0400

Hammerhead said:
??

When A/C is turned on, there is a vibration , the engine load increased yet the rpm decreased

rhysoul · 2023-03-16T20:53:36-0400

silvergem said:
Do i need to check this on mechanic? The rpm was short of 45rpm

If you’re talking about the desired rpm the computer wants and the actual rpm. It’s not going to be dead on. A small variance of 45 rpm is perfectly fine.

rhysoul · 2023-03-16T21:09:00-0400

Idle 682, ac on 657 that’s only 25 rpm. What’s the problem? it sounds normal.

(instead of updating your original post, just post a new one in this thread. Makes it easier to follow rather than going back to the top every time you change something)

silvergem · 2023-03-16T21:53:45-0400

rhysoul said:
Idle 682, ac on 657 that’s only 25 rpm. What’s the problem? it sounds normal.

Vibration, it seems the engine rpm is not enough when the engine load went from 25% to 35%

Mini Idle Vibration on Steering wheel when A/C is turned on

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